基于高延性工程水泥基复合材料的无伸缩缝桥面连续构造优化试验研究

徐召; 马雪媛; 郭亚唯; 朱尧于

doi:10.3724/j.gyjzG23040610

基于高延性工程水泥基复合材料的无伸缩缝桥面连续构造优化试验研究

doi: 10.3724/j.gyjzG23040610

徐召^1,2,
马雪媛^1,2,
郭亚唯³,
朱尧于^3, ,

1. 山东省交通规划设计院集团有限公司, 济南 250101;
2. 山东省高性能桥梁结构交通运输行业重点实验室, 济南 250101;
3. 中交公路长大桥建设国家工程研究中心有限公司, 北京 100088

详细信息

作者简介:
徐召，硕士，高级工程师，主要从事桥梁工程研究。

通讯作者:
朱尧于，博士，高级工程师，主要从事桥梁工程研究，zhuyaoy@sina.com。

计量
- 文章访问数: 35
- HTML全文浏览量: 3
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2022-04-06
- 网络出版日期: 2024-05-29

Experimental Research on Optimization of Continuous Deck Structures Without Expansion Devices Based on Engineered Cementitious Composites

XU Zhao^1,2,
MA Xueyuan^1,2,
GUO Yawei³,
ZHU Yaoyu^{3
, ,}

1. Shandong Provincial Communications Planning and Design Institute Group Co., Ltd., Jinan 250101, China;
2. Shandong Provincial Key Laboratory of High-Performance Bridge Structure Transportation Industry, Jinan 250101, China;
3. CCCC Highway Bridges National Engineering Research Centre Co., Ltd., Beijing 100088, China

摘要

摘要: 为研究高延性工程水泥基复合材料（ECC）用于桥面连续结构代替传统伸缩装置的受力性能，以后浇槽深度和钢筋有无黏结作为变参数，设计制作了4组高延性ECC桥面连接板缩尺模型构件，开展了弯拉组合工况下的连接板受力性能试验。结果表明： ECC连接板顶面呈现微裂缝多点开裂现象，裂缝宽度处于0.2 mm内，ECC材料自身发挥了较好的抗裂性能；增加后浇槽深度能够提升连接板的受力性能，但某种程度上弱化了连接板延性性能，钢筋设置无黏结段能够显著释放钢筋对ECC基体产生的约束作用，继而更好发挥ECC连接板的高延性性能。
- ECC /
- 桥面连续结构 /
- 裂缝宽度 /
- 构造优化
Abstract: In order to study the mechanical properties of high-ductility ECC materials instead of conventional expansion devices in continuous bridge deck structures, the depth of the post-cast groove and the presence or absence of bonding of rebars were used as variable parameters, designed and fabricated four sets of high-ductility ECC bridge deck joint plate scaled model members, conducted tests on the mechanical properties of joint plates under combined bending and tension conditions. The results showed that the top surface of the ECC joint plate showed the phenomenon of multi-point cracking with fine cracks, the crack width was within 0.2 mm, the ECC material itself exerted a better crack resistance; increasing the depth of the post-cast groove could improve the mechanical properties of the joint plate, but it weakened the ductility of the joint plate, the unbonded section of the rebars could significantly release the restraining effect of the rebars on the ECC matrix, and then better utilize the high ductility of the ECC joint plate.
- ECC /
- continuous bridge deck structure /
- crack width /
- structure optimization

HTML全文

参考文献(16)

[1]	BURDETTEEG, HOWATDSC, INGRAMEE, et al. Behavior of Pile Supported Integral Abutments[C]//Constructed Facilities Center, College of Engineering and Mineral Resources, West Virginia University. The 2005-FHWA Conference, Integral Abutment&Jointless Bridges (IAJB 2005). Baltimore:Federal Highway Administration, 2005:222-232.
[2]	KIM Y Y, FISCHER G, LI V C. Performance of bridge deck link slabs designed with ductile engineered cementitious composite[J]. ACI Structural Journal, 2004, 101(6):792-801.
[3]	KEOLEIAN G A, KENDALL A, DETTLING J E, et al. Life cycle modeling of concrete bridge design:comparison of engineered cementitious composite link slabs and conventional steel expansion joints[J]. Journal of Infrastructure Systems, 2005, 11(1):51-60.
[4]	LEPECH M D, LI V C. Application of ECC for bridge deck link slabs[J]. Materials and Structures, 2009, 42(9):1185-1195.
[5]	QIAN S, LEPECH M D, KIM Y Y, et al. Introduction of transition zone design for bridge deck link slabs using ductile concrete[J]. ACI Structural Journal, 2009, 106(1):96-105.
[6]	秦秋红. ECC柔性桥面连接板设计与应用研究[D].郑州:郑州大学, 2011.
[7]	丰元飞. SHCC材料在桥面无缝连续化中的应用研究[D].福州:福州大学, 2013.
[8]	王浩宇,田稳苓,周铁华,等. PVA纤维水泥基复合材料桥面连接板试验研究[J].混凝土与水泥制品, 2015(10):64-66.
[9]	朱发旺. PVA-ECC桥面连接板的设计与性能研究[D].南京:东南大学, 2019.
[10]	钱臻旭.基于高延性ECC材料的桥面连续优化设计及力学性能研究[D].南京:东南大学, 2021.
[11]	田稳苓,崔磊涛,李帆,等. PVA-ECC桥面连接板的力学性能[J].低温建筑技术, 2013, 35(2):30-32.
[12]	林雄.简支梁桥ECC桥面连接板研究[D].南京:东南大学, 2017.
[13]	ZHENG Y, ZHANG L F, XIA L P. Investigation of the behaviour of flexible and ductile ECC link slab reinforced with FRP[J]. Construction and Building Materials, 2018, 166:694-711.
[14]	张黎飞,郑愚,吴镇铎,等.纤维增强复材筋增强纤维水泥基复材桥面连接板工作性能研究[J].工业建筑, 2019, 49(9):82-89.
[15]	夏立鹏,张黎飞,郑愚. CFRP增强工程水泥基复合材料桥面连接板的结构和性能[J].复合材料学报, 2019, 36(4):848-859.
[16]	郭丽萍,朱春东,范永根.桥面连接板修补用高延性水泥基复合材料的设计与应用[J].混凝土与水泥制品, 2016(12):36-39.